Wireshark is the world’s foremost and widely-used network protocol analyzer. It lets you see what’s happening on your network at a microscopic...
Best Portmaster Alternatives ranked by AI · updated Aug 2026
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Portmaster is an open-source desktop firewall and privacy tool for controlling application network access. It adds per-app filtering, DNS protection, and privacy-focused traffic policies for Windows and Linux users.
Top 6 Portmaster alternatives
NetWorx is a simple, yet powerful tool that helps you objectively evaluate your bandwidth consumption situation.
Free version available, Pro version starts at $29
CurrPorts displays the list of all currently opened TCP/IP and UDP ports on your local computer.
Resource Monitor is a system resource monitoring tool in Windows that provides real-time information about the usage of hardware (CPU, disk, network,...
NetBalancer is a Windows application for network monitoring and traffic control.
NetLimiter is a powerful internet traffic control and monitoring tool designed for Windows. It allows you to set limits on bandwidth usage...
Starting from $29.95 for a single-user license
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